what is expected to happen after the addition of CaCl2 in a soap solution made from 5g of shortening and 5g of corn oil? a) more suds b) no change in suds c)fewer suds explain your answer from a chemi...
what is expected to happen after the addition of CaCl2 in a soap solution made from 5g of shortening and 5g of corn oil? a) more suds b) no change in suds c)fewer suds
explain your answer from a chemical standpoint
Homework Answers
Addition of CaCl2 to a sample of water increases the hardness of water (it causes permanent hardness).
Basically, the soap molecules react with such hardness causing ions to form insoluble precipitate. This results in wastage of soap as the soap molecules are consumed by these ions and more amount of soap needs to be added to have the same cleansing effect as compared to when such ions were absent.
In this case, after the addition of CaCl2, a significant fraction of soap present in the solution will precipitate by forming insoluble calcium salt. This will result in lesser amount of soap available to form suds.
So, the answer to the question should be: c) fewer suds.
Feel free to ask for any further clarifications.
All the best.
Add Answer to:
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